I just purchased a Nikon D70 from a local retailer, and it included the 18mm-70mm lens. I also purchased a 70-300mm lens off of ebay. Now, what would be the best lens to get next. I will be shooting horse shows (jumping), but I would also like a nice lens for macros. Any suggestions? (Btw, what are people talking about "Prime" lenses... ) Thanks everybody!